From 0c606491335e99017897a7710461214412243dd7 Mon Sep 17 00:00:00 2001
From: Teddy <ted.sybil@gmail.com>
Date: Fri, 9 Aug 2013 10:31:09 +0800
Subject: ...

---
 parser.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'parser.cpp')

diff --git a/parser.cpp b/parser.cpp
index ff21b7b..97482d4 100644
--- a/parser.cpp
+++ b/parser.cpp
@@ -149,6 +149,9 @@ Pair *ASTGenerator::absorb(Tokenizor *tk) {
     FrameObj **top_ptr = parse_stack;
     for (;;)
     {
+        if (top_ptr == parse_stack + PARSE_STACK_SIZE)
+            throw TokenError("Parser", RUN_ERR_STACK_OVERFLOW);
+
         if (top_ptr - parse_stack > 1 && 
                 !IS_BRAKET(*(top_ptr - 1)) &&
                 IS_BRAKET(*(top_ptr - 2)))
-- 
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